(19)
(11) EP 0 564 006 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.12.1993 Bulletin 1993/50

(43) Date of publication A2:
06.10.1993 Bulletin 1993/40

(21) Application number: 93108617.7

(22) Date of filing: 03.05.1988
(51) International Patent Classification (IPC)5: C07D 473/00
(84) Designated Contracting States:
AT DE FR IT SE

(30) Priority: 04.05.1987 YU 786/87
06.11.1987 YU 2020/87

(62) Application number of the earlier application in accordance with Art. 76 EPC:
88107103.9 / 0289992

(71) Applicants:
  • KRKA, tovarna zdravil, n.sol.o
    YU-68000 Novo Mesto (YU)
  • KEMIJSKI INSTITUT "BORIS KIDRIC"
    YU-61000 Ljubljana (YU)

(72) Inventors:
  • Kobe, Joze
    YU-61000 Ljubljana (YU)
  • Stimac, Anton
    YU-61000 Ljubljana (YU)
  • Zupet, Pavle
    YU-68000 Novo mesto (YU)
  • Gnidovec, Joze
    SI-68000 Novo mesto (SI)
  • Plavec, Janez
    YU-68000 Novo mesto (YU)

(74) Representative: Müller-Boré & Partner Patentanwälte 
Grafinger Strasse 2
81671 München
81671 München (DE)


(56) References cited: : 
   
     
    Remarks:
    This application was filed on 27 - 05 - 1993 as a divisional application to the application mentioned under INID code 60.
     


    (54) Process for preparing purine derivatives and novel purine derivatives


    (57) There are disclosed purine derivatives of the general formula I

    wherein

    Z = H, R1 =CH3CO and R3 = H and further N2-acetyl-9-(2-hydroxyethoxymethyl)guanine also being a compound of the formula I. The preparation of these compounds is also disclosed.





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